openHAB2, Habmin2 and sitemaps

Does openhab2 and habmin2 support new site maps configuration (creation)?
My installation does not seems to do so. Where does the sitemap used by habmin comes from?
It does not correspond to the sitemap I have in /opt/openhab/config/sitemaps (I am running openhab on Linux (arm jessie) as you can imagine). I have only one sitemap in this folder and it is not the demo one.
What am I missing?

Thanks for any help.